Unable to Remove Broken Plunger Pins

A home owner from Florida says:
Most of our window screen plunger pins are not functioning. They seem to be frozen. The pins will not pull back or push forward. I tried spraying lubricant in the screen hole. The screens are about 15 years old but in good condition other than the plunger pins. How can you remove broken plunger pins from the screen to replace them? Also, once removed the pin seems to be tapered on the ends. What replacement part would I need?
User submitted photos of a screen pin.
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Paul from SWISCO responded:
You will need to cut off the black cap to remove the old pin. Your old pins seen to have a pointed end like our 70-219, but I think you might be able to use our metal 70-008. The only issue is you might have to file the ends to a point to fit in the hole. What do you think?
A quick learner from Florida says:
If I cut off the caps they should come out? I can't get the cap to pull back or move forward on most of them right now. The 70-219 may work but I would like to have metal if possible.
A quick learner from Florida says:
I was able to remove one pin that was in the screen that didn't have a cap on. It is 1.5" long total. In between the grooves it is 1" long.
User submitted photos of a screen pin.
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Dave Sr. from SWISCO responded:
Thank you! I agree with Paul, especially after seeing these new pictures. This is no longer available. When we were manufacturing screens once upon a time, we used the 70-009 and ground down the ends to a point. However you seem to have a corrosion problem. Take a look at the 70-219, which is made of nylon. That might be a better choice.
A quick learner from Florida says:
Thank you, I will try them!
A quick learner from Chicago says:
Mine are stuck as well but unfortunately the screen is still in place in window... I tried pulling them down with pliers only to poke tiny holes in the screen! How can I remove screen if u cannot get plunger to release? Do I have to find s way to saw off the top piece?? Mine seem to be made of metal...
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Paul from SWISCO responded:

Try spraying WD40 on the pins and letting it soak for an hour or two and then see if the pins will retract for you. Let us know how it goes.

A quick learner from Hawaii says:
Hi. What if the pin has broken off and the screen is still on the window? How would I remove the plunger to remove the screen?

Any suggestion would be appreciated.

Thanks.
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Dave Sr. from SWISCO responded:

I would suggest again using a spray lubricant. Specifically, you want to spray into the pin hole to lubricate and loosen up the spring and pin. Then you would use a set of long nose pliers to pull the end of the pin. That should disengage the screen from the window frame.

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